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the percent by mass of sulfur trioxide in oleum

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1. Oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9% sulfur trioxide.

A. What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3? Show your solution.

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Solution Summary

It shows how to find the percent by mass of sulfur trioxide in oleum.

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The atom mass of H, S, O are 1, 32, and 16 g/mol respectively.

The molar mass of 3H2SO4 . 5SO3 is
3 *(2 * 1 + 32 + 4*16) + 5*(32 ...

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